/*
 Copyright (c) 2009 Rafal Szemraj - http://szemraj.eu

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 of the Software, and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all 
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
*/
package eu.szemraj.managers {
    import eu.szemraj.exception.SingletonCreationException;    

    import flash.utils.Dictionary;
    import flash.utils.getQualifiedClassName;
        

    public class SingletonManager {

        private static var singletonsInstances:Dictionary = new Dictionary( );

        public static function checkSingleton( singletonInstance:Object ):void {
    		
    		
            var singletonClassName:String = getQualifiedClassName( singletonInstance );
            if( singletonsInstances[ singletonClassName ] )
    			throw new SingletonCreationException( singletonInstance.constructor as Class );
            singletonsInstances[ singletonClassName ] = singletonClassName;
        }
    }
}
